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Friday, January 6, 2012

With every iOS released, Apple is taking measures to prevent hackers for jailbreaking the iOS. If you update your iDevice to iOS 5.0.1 , now it's the time to save your SHSH blobs, this will allow you to downgrade whenever needed.

Step 1: Download the latest version of TinyUmbrella and RedSn0w.

Step 2: Connect your iDevice to your computer.

Step 3: Open TinyUmbrella and Save your iOS 5.0.1 SHSH blobs using the settings outlined in the video above. Note: This has to be done while Apple is still signing the iOS 5.0.1 firmware, so act fast before they update to 5.1. You can also retrieve your blobs from Cydia if you already have them saved on Cydia’s servers.

Step 4: Open RedSn0w and go to Extras > SHSH blobs > Stitch and point to the iOS 5.0.1 firmware for your device, and then select the 5.0.1 SHSH blob and let RedSn0w stitch them together. Note: This step only applies to A4 devices like the iPhone 4 or iPad 1. See below for more details.

Step 5: Save your newly created self-contained IPSW file to a safe spot. Now you will always be able to downgrade to iOS 5.0.1 even if Apple is no longer signing the firmware.

About Stitching: You don’t necessarily have to create a stitched IPSW+SHSH blob to protect your iOS 5.0.1 untethered jailbreak; in fact, as of now you can’t stitch blobs for A5 devices like the iPhone 4S or iPad 2. Instead, save off both the firmware for iOS 5.0.1 along with the SHSH blob in a safe place. Once a bootrom level exploit is found for A5 devices, you can go back and stitch these together.
You can then restore using your stitched IPSW file by utilizing PwnedDFU mode and the Custom IPSW option in RedSn0w.

For those having problems on Windows with the following error: The blobs could not be verified